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BUILDING AND DUCTWORK AIRTIGHTNESS PLATFORM

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Home » FAQ Section » Building Airtightness 1 2 3 >>

Building Airtightness

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What is the way to get a good airtightness of the building (from contractor to craftsman)?

TightVent Europe

Short answer: Good building airtightness is achieved in 3 steps: Plan – Build – Check. The building airtightness requirement is defined in the design phase of the building. The air barrier  is then drawn in design and execution plans, and … Continue reading →

Is the building preparation for airtightness test identical for every country?

TightVent Europe

Short answer: In most European countries the building preparation is based on ISO 9972 requirements. However, the interpretation of these requirements may differ from one country to another, and based on different building preparation rules. Long answer: Building preparation errors … Continue reading →

What are relevant CEN standards related to building & ductwork airtightness?

TightVent Europe

TightVent Europe has published a list of applicable standards for building and ductwork airtightness. The detailed list can be found here.

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What do we know about the durability of building airtightness?

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Short answer: Airtightness durability is a growing issue in Europe and the US. In the long-term, it seems that some specific sealing products have durable performances but on-site studies have shown that many factors can deteriorate the airtightness durability of … Continue reading →

What is TAAC? How can I be involved?

TightVent Europe

Short answer: TAAC is the TightVent Airtightness Associations Committee and has the primary goal to bring together national associations and experts on building and ductwork airtightness in order to promote reliable testing and reporting procedures. Long answer: TAAC  is the … Continue reading →

Are there databases on building and ductwork airtightness?

TightVent Europe

France, Belgium (Flemish Region) & the United Kingdom have national databases that gather most of measurements performed by qualified testers in their countries. Other initiatives also exist in Spain, Germany, Czech Republic, Estonia and the US [1], [2]. More information can … Continue reading →

What is an adhesive, a grommet, a vapour barrier, etc.?

TightVent Europe

See Definitions of terms used for tightening products at the end of the list of FAQs.

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What is building airtightness?

TightVent Europe

Building airtightness (also called envelope airtightness) can be defined as the resistance to inward or outward air leakage through unintentional leakage points or areas in the building envelope. This air leakage is driven by differential pressures across the building envelope … Continue reading →

What is infiltration/exfiltration?

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Infiltration/exfiltration is the uncontrolled inward/outward leakage of outdoor/indoor air through air permeable materials, joints, cracks, interstices and other unintentional openings of a building envelope, caused by the pressure effects of wind, the stack effect or operation of HVAC-systems [1]. Infiltration/exfiltration causes convective … Continue reading →

What is the energy impact of building and ductwork airtightness?

TightVent Europe

The implementation of the EPBD recast puts increasing pressure to achieve better building and ductwork airtightness since for most European climates and countries, good airtightness levels are necessary to achieve nearly zero-energy buildings. This has been shown in a number … Continue reading →

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